I've been going back and forth for a while now on a pistol. I'm used to heavier guns and I can't resist the options the M93R allows. My dilemma is where to keep my mags. I'll definitely go with the 32rd mags if I get the gun, is there any pouch that will hold them secure? Perhaps a P90 mag pouch?

if you have the money, you can go and get HSGI taco pouches. Those pistol pouches will expand and contract to fit virtually any pistol magazine you have. I also run the rifle tacos as well, so that I can use multiple systems without changing my rig.

I have a raffica and I don't use SMG pouches. I would generally use those for the 50 round mag. I do like the idea of using the SMG pouch, but I know some other pouches you can use too. I have a Condor Kangaroo M4 Pouch, which fits an M4 mag and a pistol mag and DOES fit the 32 round mag rather snugly, so you can do that. Alternatively, you can use a dump pouch with that mag in it and run the gun like that. :]